An alert driver can apply the brakes fully in about 0.5 seconds (s). If the car traveled 58 meters after the brakes were applied, what was the velocity of the car before braking, in m/s?

Kc = 0.040 for the system below at 450oc. if a reaction is initiated with 0.40 mole of cl2 and 0.40 mole of pcl3 in a 2.0 liter container, what is the equilibrium concentration of cl2 in the same system? pcl5(g) ⇄ pcl3(g) + cl2(g)

Astudent is asked to identify and element that is pale yellow brittle solid and does not conduct electricity. at which location in this periodic table would the element most likely be found?

What type of radiation is lead emitting in the following equation? alpha particles beta particles gamma rays